CN108590037A - A kind of novel arrangement of reinforcement hollow steel pipe high-strength concrete column - Google Patents
A kind of novel arrangement of reinforcement hollow steel pipe high-strength concrete column Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 26
- 230000002787 reinforcement Effects 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000011376 self-consolidating concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 10
- 210000003205 muscle Anatomy 0.000 abstract 3
- 238000010923 batch production Methods 0.000 abstract 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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Abstract
Description
技术领域technical field
本发明涉及一种混凝土柱，特别涉及一种新型的配筋空心钢管高强混凝土柱，属于建筑技术领域。The invention relates to a concrete column, in particular to a novel reinforced hollow steel tube high-strength concrete column, which belongs to the technical field of construction.
背景技术Background technique
随着社会和经济的发展，高层、大跨建筑在我国城市建设中的使用日益增长。随着建筑高度的增加和对建筑大空间、大跨度的要求，竖向承重构件的所承受的荷载增加，为了满足承载力和抗震性能的要求，竖向构件的尺寸也随之增大。钢-混凝土组合结构通过合理组合，充分发挥了钢材和混凝土的优点，表现出良好的受力性能和社会经济效益，在超高层建筑、大型场馆、桥梁结构和地下工程中的应用非常广泛。国家大力提倡绿色建筑及建筑工业化，进一步加大力度推进新型组合结构在建筑业中的应用，因此，推动钢-混凝土组合结构的持续发展，对促进土木工程行业的进步和推广绿色建筑具有重要的意义。With the development of society and economy, the use of high-rise and large-span buildings in urban construction in our country is increasing day by day. With the increase of building height and the requirement of large space and large span, the load borne by vertical load-bearing components increases. In order to meet the requirements of bearing capacity and seismic performance, the size of vertical components also increases. Steel-concrete composite structures give full play to the advantages of steel and concrete through reasonable combination, showing good mechanical performance and social and economic benefits, and are widely used in super high-rise buildings, large venues, bridge structures and underground engineering. The country vigorously advocates green buildings and building industrialization, and further intensifies efforts to promote the application of new composite structures in the construction industry. Therefore, promoting the sustainable development of steel-concrete composite structures is of great importance to promote the progress of the civil engineering industry and promote green buildings. significance.
钢管混凝土结构的截面形式多样，由圆形、方形、矩形，向多边形、中空夹层、空心、复式、叠合、椭圆和异形等不断演变和丰富，其中，空心钢管混凝土是常见钢管混凝土结构的重要形式之一，已被广泛的应用于电力工程中。由于其与实心钢管混凝土比，承载力相对较低、抗震性能稍差，因此，在建筑工程中应用较少。空心钢管混凝土可以充分发挥钢材和混凝土的物理力学性能，且自重轻等优点，为了推广空心钢管混凝土在建筑工程中的使用以及拓宽其应用范围，本研究提出一种新型的配筋空心钢管高强混凝土结构。该新型组合柱，由预制离心成型高强混凝土空心管柱、填充混凝土以及钢管三部分组成。The cross-sectional forms of CFST structures are varied, ranging from circular, square, and rectangular to polygonal, hollow interlayer, hollow, duplex, superimposed, elliptical, and special-shaped. One of the forms has been widely used in power engineering. Compared with solid steel pipe concrete, its bearing capacity is relatively low and its seismic performance is slightly worse, so it is less used in construction projects. Hollow steel tube concrete can give full play to the physical and mechanical properties of steel and concrete, and has the advantages of light weight. In order to promote the use of hollow steel tube concrete in construction projects and broaden its application range, this study proposes a new type of reinforced hollow steel tube high-strength concrete. structure. The new composite column is composed of three parts: prefabricated centrifugally formed high-strength concrete hollow column, filled concrete and steel pipe.
发明内容Contents of the invention
本发明要解决的技术问题是克服空心混凝土柱承载力相对较低、抗震性能稍差的缺陷，提供一种新型的配筋空心钢管高强混凝土柱。The technical problem to be solved by the present invention is to overcome the defects of relatively low bearing capacity and slightly poor seismic performance of hollow concrete columns, and provide a new type of high-strength concrete column with reinforced hollow steel pipes.
为了解决上述技术问题，本发明提供了如下的技术方案：In order to solve the problems of the technologies described above, the present invention provides the following technical solutions:
本发明提供了一种新型的配筋空心钢管高强混凝土柱，包括钢管和放置在其内部的圆形的预应力高强混凝土管柱及填充在二者之间的混凝土构成，所述管柱由纵筋、螺旋箍筋和混凝土经工厂离心法制成，且若干所述纵筋均匀分布围成一圈，所述螺旋箍筋螺旋缠绕于纵筋的表面。The invention provides a novel reinforced hollow steel pipe high-strength concrete column, which comprises a steel pipe, a circular prestressed high-strength concrete pipe column placed inside it, and concrete filled between the two. The tendons, spiral stirrups and concrete are made by factory centrifugal method, and several longitudinal bars are evenly distributed to form a circle, and the spiral stirrups are helically wound on the surface of the longitudinal bars.
作为本发明的一种优选技术方案，所述钢管和管柱端面相平，且外层钢管和内层管柱的几何形心重合。As a preferred technical solution of the present invention, the end surfaces of the steel pipe and the pipe string are flat, and the geometric centroids of the outer steel pipe and the inner pipe string coincide.
作为本发明的一种优选技术方案，所述钢管为圆形或方形或六边形或八边形，所述管柱为圆形或方形。As a preferred technical solution of the present invention, the steel pipe is circular or square or hexagonal or octagonal, and the pipe column is circular or square.
作为本发明的一种优选技术方案，所述纵筋为普通钢筋或高强钢筋或预应力筋。As a preferred technical solution of the present invention, the longitudinal bars are ordinary steel bars or high-strength steel bars or prestressed bars.
作为本发明的一种优选技术方案，所述混凝土为普通混凝土或高强混凝土或自密实混凝土。As a preferred technical solution of the present invention, the concrete is ordinary concrete or high-strength concrete or self-compacting concrete.
作为本发明的一种优选技术方案，所述钢管为高强钢材或普通钢材。As a preferred technical solution of the present invention, the steel pipe is high-strength steel or ordinary steel.
本发明所达到的有益效果是：本发明相对于普通的空心钢管混凝土，内部增加了配筋，增强了结构整体性，提高了承载能力；相较于管桩，改善了其抗剪承载力和耗能能力；构件预制，工厂化程度高，质量易监测，施工效率高；耐火能力强；解决了钢筋混凝土的纵向裂缝的问题，延长使用寿命。该新型结构可用于桥墩，建筑物中大直径柱、桩，以及其它有关需求的构筑物或其构件。The beneficial effects achieved by the present invention are: compared with ordinary hollow concrete filled steel tubes, the present invention adds reinforcement inside, enhances structural integrity, and improves bearing capacity; compared with pipe piles, it improves its shear bearing capacity and Energy consumption capacity; component prefabrication, high degree of industrialization, easy quality monitoring, high construction efficiency; strong fire resistance; solves the problem of longitudinal cracks in reinforced concrete and prolongs the service life. The novel structure can be used for bridge piers, large-diameter columns and piles in buildings, and other related structures or components thereof.
附图说明Description of drawings
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:
图1为本发明外钢管为六边形，内管柱为圆形截面的结构平面图；Fig. 1 is that the outer steel pipe of the present invention is a hexagon, and the inner pipe column is a structural plan view of a circular section;
图2为本发明外钢管为八边形，内管柱为圆形截面的结构平面图；Fig. 2 is that the outer steel pipe of the present invention is an octagon, and the inner pipe column is a structural plan view of a circular section;
图3为本发明外钢管为圆形截面，内管柱为圆形截面的结构平面图；Fig. 3 is a structural plan view in which the outer steel pipe of the present invention is a circular cross-section, and the inner pipe string is a circular cross-section;
图4为本发明外钢管为方形截面，内管柱为圆形截面的结构平面图；Fig. 4 is a structural plan view in which the outer steel pipe of the present invention is a square section and the inner pipe column is a circular section;
图5为本发明外钢管为矩形，内管柱为圆形截面的结构平面图；Fig. 5 is a structural plan view in which the outer steel pipe of the present invention is a rectangle and the inner pipe string is a circular section;
图6为本发明外钢管为方形，内管柱为方形截面的结构平面图；Fig. 6 is a structural plan view in which the outer steel pipe of the present invention is square and the inner pipe column is a square section;
图7为本发明外钢管为八边形，内管柱为方形截面的结构平面图；Fig. 7 is the structure plan view that the outer steel pipe of the present invention is an octagon, and the inner pipe column is a square section;
图8为本发明外钢管为圆形，内管柱为方形截面的结构平面图；Fig. 8 is a structural plan view in which the outer steel pipe of the present invention is circular and the inner pipe column is a square section;
图中标号：1、钢管；2、混凝土；3、纵筋；4、螺旋箍筋；5、管柱。Labels in the figure: 1. Steel pipe; 2. Concrete; 3. Longitudinal reinforcement; 4. Spiral stirrup; 5. Pipe column.
具体实施方式Detailed ways
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
实施例1Example 1
如图1-8所示，本发明提供了一种新型的配筋空心钢管高强混凝土柱，包括钢管1和放置在其内部的圆形的预应力高强混凝土管柱5及填充在二者之间的混凝土2构成，管柱5由纵筋3、螺旋箍筋4和混凝土2经工厂离心法制成，且若干纵筋3均匀分布围成一圈，螺旋箍筋4螺旋缠绕于纵筋3的表面。As shown in Figures 1-8, the present invention provides a novel reinforced hollow steel pipe high-strength concrete column, which includes a steel pipe 1 and a circular prestressed high-strength concrete pipe column 5 placed inside it and filled between the two Composed of concrete 2, pipe string 5 is made of longitudinal reinforcement 3, spiral stirrup 4 and concrete 2 through factory centrifugal method, and several longitudinal reinforcement 3 are evenly distributed to form a circle, and spiral stirrup 4 is helically wound on the surface of longitudinal reinforcement 3 .
钢管1和管柱5端面相平，且外层钢管1和内层管柱5的几何形心重合。空心钢管混凝土柱组合构件的截面包括：外钢管为圆形截面，内管柱为圆形截面；外钢管为方形截面，内管柱为圆形截面；外钢管为六边形，内管柱为圆形；外钢管为八边形，内管柱为圆形；外钢管为矩形，内管柱为圆形；外钢管为圆形，内管柱为方形；外钢管为方形，内管柱为方形；外钢管为矩形，内管柱为方形。纵筋3为普通钢筋或高强钢筋或预应力筋。混凝土2为普通混凝土或高强混凝土或自密实混凝土。钢管1为高强钢材或普通钢材。The end surfaces of the steel pipe 1 and the pipe string 5 are flat, and the geometric centroids of the outer steel pipe 1 and the inner pipe string 5 coincide. The cross-section of the hollow concrete-filled steel tube column composite member includes: the outer steel pipe is a circular cross-section, and the inner pipe string is a circular cross-section; the outer steel pipe is a square cross-section, and the inner pipe string is a circular cross-section; the outer steel pipe is hexagonal, and the inner pipe string is Round; the outer steel pipe is octagonal, and the inner pipe column is circular; the outer steel pipe is rectangular, and the inner pipe column is circular; the outer steel pipe is circular, and the inner pipe column is square; the outer steel pipe is square, and the inner pipe column is Square; the outer steel pipe is rectangular, and the inner pipe column is square. Longitudinal bars 3 are ordinary steel bars or high-strength steel bars or prestressed bars. Concrete 2 is ordinary concrete or high-strength concrete or self-compacting concrete. The steel pipe 1 is high-strength steel or common steel.
具体工作原理：本发明为一种新型的配筋空心钢管高强混凝土柱，由钢管1和放置在其内部的圆形的预应力高强混凝土管柱5及填充在二者之间的混凝土2构成，在施工时，可先在工厂将预应力高强混凝土空心管柱5制作好，然后在钢管1和预应力高强混凝土空心管柱5之间浇筑高强混凝土2，形成空心钢管混凝土。该新型组合柱中的钢管、钢筋以及混凝土三者能够有机结合、协同工作，充分发挥各自的力学性能，其中混凝土可以防止钢管发生屈曲，钢管和管柱中的箍筋可以约束混凝土、纵向钢筋可提供竖向承载力，从而使组合柱具有较高的承载力，大于三者单独承载力之和。与实心钢管混凝土构件比，新型组合柱自重轻，施工速度快，可实现部分装配，减少现场湿作业工作量；预制部分混凝土在工厂通过工业化生产制作，混凝土强度高、质量有保证、周期短；预制部分混凝土配置了螺旋箍筋、纵向预应力钢筋和普通钢筋，可增加空心钢管混凝土的承载力，其中，施加的预应力可增加构件抗裂承载力，从而增加其耐久性；与普通空心钢管混凝土比，承载力更高、延性和抗震性能更好、耐久性和耐火性能更好。Specific working principle: the present invention is a new type of reinforced hollow steel pipe high-strength concrete column, which is composed of a steel pipe 1, a circular prestressed high-strength concrete pipe column 5 placed inside it, and concrete 2 filled between the two. During construction, the prestressed high-strength concrete hollow pipe column 5 can be manufactured first in the factory, and then the high-strength concrete 2 is poured between the steel pipe 1 and the prestressed high-strength concrete hollow pipe column 5 to form a hollow concrete filled steel pipe. The steel pipe, steel bar and concrete in the new composite column can be organically combined and work together to give full play to their respective mechanical properties. Among them, the concrete can prevent the steel pipe from buckling, the steel pipe and the stirrup in the pipe column can restrain the concrete, and the longitudinal steel bar can Provide vertical bearing capacity, so that the composite column has a higher bearing capacity, which is greater than the sum of the three individual bearing capacities. Compared with solid steel pipe concrete components, the new composite column has light weight and fast construction speed, which can realize partial assembly and reduce the workload of on-site wet work; the prefabricated part of the concrete is produced in the factory through industrial production, and the concrete has high strength, guaranteed quality and short cycle time; The prefabricated part of the concrete is equipped with spiral stirrups, longitudinal prestressed steel bars and ordinary steel bars, which can increase the bearing capacity of the hollow concrete filled steel tube. Among them, the applied prestress can increase the crack resistance of the component, thereby increasing its durability; Compared with concrete, it has higher bearing capacity, better ductility and earthquake resistance, and better durability and fire resistance.
本发明所达到的有益效果是：本发明相对于普通的空心钢管混凝土，内部增加了配筋，增强了结构整体性，提高了承载能力；相较于管桩，改善了其抗剪承载力和耗能能力；构件预制，工厂化程度高，质量易监测，施工效率高；耐火能力强；解决了钢筋混凝土的纵向裂缝的问题，延长使用寿命。该新型结构可用于桥墩，建筑物中大直径柱、桩，以及其它有关需求的构筑物或其构件。The beneficial effects achieved by the present invention are: compared with ordinary hollow concrete filled steel tubes, the present invention adds reinforcement inside, enhances structural integrity, and improves bearing capacity; compared with pipe piles, it improves its shear bearing capacity and Energy consumption capacity; component prefabrication, high degree of industrialization, easy quality monitoring, high construction efficiency; strong fire resistance; solves the problem of longitudinal cracks in reinforced concrete and prolongs the service life. The novel structure can be used for bridge piers, large-diameter columns and piles in buildings, and other related structures or components thereof.
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030986A (en) * | 2020-07-31 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Combined steel pipe concrete waist beam structure, prefabricated member, connecting joint and construction method |
| CN112554045A (en) * | 2020-12-22 | 2021-03-26 | 沈阳建筑大学 | Novel corrosion-resistant FRP (fiber reinforced plastic) -steel pipe concrete combined pier applied to offshore building |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2765965Y (en) * | 2004-03-10 | 2006-03-22 | 徐国林 | Hollow steel pipe concrete column |
| CN101476370A (en) * | 2009-01-15 | 2009-07-08 | 清华大学 | Hollow interlayer stainless steel tube concrete structure |
| CN206299039U (en) * | 2016-12-15 | 2017-07-04 | 河南省电力勘测设计院 | The square concrete hollow column of centrifugal forming prestressing force |
| CN208533868U (en) * | 2018-07-02 | 2019-02-22 | 沈阳建筑大学 | A New Type of Reinforced Hollow Steel Tube High Strength Concrete Column |
-
2018
- 2018-07-02 CN CN201810706163.XA patent/CN108590037A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2765965Y (en) * | 2004-03-10 | 2006-03-22 | 徐国林 | Hollow steel pipe concrete column |
| CN101476370A (en) * | 2009-01-15 | 2009-07-08 | 清华大学 | Hollow interlayer stainless steel tube concrete structure |
| CN206299039U (en) * | 2016-12-15 | 2017-07-04 | 河南省电力勘测设计院 | The square concrete hollow column of centrifugal forming prestressing force |
| CN208533868U (en) * | 2018-07-02 | 2019-02-22 | 沈阳建筑大学 | A New Type of Reinforced Hollow Steel Tube High Strength Concrete Column |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030986A (en) * | 2020-07-31 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Combined steel pipe concrete waist beam structure, prefabricated member, connecting joint and construction method |
| CN112554045A (en) * | 2020-12-22 | 2021-03-26 | 沈阳建筑大学 | Novel corrosion-resistant FRP (fiber reinforced plastic) -steel pipe concrete combined pier applied to offshore building |
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Application publication date: 20180928 |
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